The move for openpower2 has been completed. Sorry it took a little longer than planned. Please let me know if any VMs are still unreachable.
On Thu, Mar 8, 2018 at 11:15 AM, Lance Albertson <la...@osuosl.org> wrote: > The move for openpower1 has been completed and all VMs should be booting > up or already should be back online that were on that hypervisor. Please > let us know if you have an issue with one of your VMs. We'll be moving > openpower2 later this afternoon as planned. > > Thanks- > > On Tue, Mar 6, 2018 at 2:36 PM, Lance Albertson <la...@osuosl.org> wrote: > >> Service(s) affected: >> >> All VMs hosted on the OpenPOWER OpenStack cluster will be offline for >> approximately 2-4 hours during each server move. In addition, any VMs which >> have block storage attached to the affected nodes will have an outage. >> >> For a list of affected VMs per hypervisor node, please see the following >> spreadsheet which includes the UUID for each instance as it stands today. >> You can see what UUID your VM has by looking at the >> /run/cloud-init/.instance-id file on your vm. In addition, if you're using >> a block storage (cinder) volume, I have a sheet which shows the mappings by >> UUID to the host. >> >> OpenStack Cluster Server Moves >> <https://docs.google.com/a/osuosl.org/spreadsheets/d/15D3VE13chSn0jmGWpf5wsPsin6ex0B3I6FTwS74T5uY/edit?usp=drive_web> >> >> Outage Window >> s >> : >> >> openpower1 >> Start: Thu, Mar 8, 9:00AM PST (Thu Mar 8 1700 UTC) >> End: Thu, Mar 8, 11:00AM PST (Thu Mar 8 1900 UTC) >> >> openpower2 >> Start: Thu, Mar 8, 3:00PM PST (Thu Mar 8 2300 UTC) >> End: Thu, Mar 8, 5:00PM PST (Fri Mar 9 0100 UTC) >> >> openpower3 >> Start: Fri, Mar 9, 8:30AM PST (Fri Mar 9 1630 UTC) >> End: Fri Mar 9, 10:30AM PST (Fri Mar 9 1830 UTC) >> >> openpower5 >> Start: Fri, Mar 9, 1:00PM PST (Fri Mar 9 2100 UTC) >> End: Fri Mar 9, 3:00PM PST (Fri Mar 9 2300 UTC) >> >> openpower6 (note DST change for us) >> Start: Mon, Mar 12, 1:00PM PDT (Fri Mar 9 2000 UTC) >> End: Mon Mar 12, 3:00PM PDT (Fri Mar 9 2200 UTC) >> >> Reason for outage: >> >> We are in the process of migrating the storage backend of the cluster >> from local storage to using Ceph as a backend. The migration to Ceph should >> improve I/O bandwidth and capacity and also provide more flexibility with >> doing server maintenance since we can do live migrations on VMs. Thanks to >> a donation from IBM, we have a new five node Ceph cluster with 292TB of >> capacity including SSD's for journal caching. In addition, we're going to >> be upgrading the networking layer from 1Gbps to 40Gbps due to the use of >> Ceph thanks to several donations from Mellanox. Since we're going to be >> incurring an outage for the server move, we wanted to do a few other items >> as the same time to reduce additional outage times. >> >> The first phase of this migration includes the following (which this >> outage covers): >> >> 1. Moving each compute server to a different rack closer to a Mellanox >> 40G switch >> 2. Installing and configuring a Mellanox 40G NIC card >> 3. Upgrading the system firmware (which includes Meltdown/Spectre fixes) >> 4. Switching over to a 4.14 mainline kernel on the host to provide better >> feature support on ppc64le (also provides fixes for Meltdown/Spectre) >> >> We have five compute nodes and we're planning on doing two sever moves a >> day starting on Thursday of this week. We're going to need to bring the >> nodes up and down several times so we'll be disabling the openstack >> services on those nodes until the process is complete. >> >> The second phase of the migration will happen in a few weeks and should >> only have per VM impacts while we migrate them over to the new Ceph >> cluster. I'll send a separate announcement about that once we're ready for >> that. >> >> If you have any questions or concerns please let me know directly via >> email or IRC. >> >> Thanks! >> >> -- >> Lance Albertson >> Director >> Oregon State University | Open Source Lab >> > > > > -- > Lance Albertson > Director > Oregon State University | Open Source Lab > -- Lance Albertson Director Oregon State University | Open Source Lab
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